Type-writing machine.



' P. w. SIGKLES. TYPE WRITING MACHINE.

APPLIUATION FILED FEB.8,'1908.

' Patented'July 13, 1909.

C3 di iiipMy ,v At 11%? ummy.

.niniirnn omens PATENT onnion.

FRANK. W. SKCKLES, OF HARTFORD, CQNNEGTIOUT, ASSIGNOR TO UNIEERWOOD Tl'PEli'RllEll.

n specification.

(JOlttPANY, on NEW YORK, N. Y., A CORPORATION OF NEW JERSEY. ryrnwnmi'no imomnm.

No. 928,926. Speeifleafion of Letters Patent. Petentetl July 18, 1989.

Application filed February 8, 1908. Serial. No. 414,908." To all wlzom it may concern: ing 2. depending ear 1G, and the other arm lie it: known thatl, I nANn W. SioKLns, i extend ng renrwwill ?1 end also having a a citizen oi the United Statesfresiding in 7 depending ear 11. T e rod 5'extends along llnr'tlord, in the county ofllartford and the pla en and'is fixedat: its ends in the State of Connecticut, have invented certain ends of the lnten frame. Brackets 12, seno new and useful Improvements in Typecured upon the rod 5, carry a. rolld'eieosing Tiling Machines. of which the following is rock-shaft 13, having earns 14, and provided. I with a crank 15 connected by a link 113 to This invention. relates to the paper feedlevel aving ti k y 3' d pivot d ing devices of typewriting machines; in upon the platen frame. A. pair of loafer which a. platen is revolnbly mou t ti in a springslthztlnre secured upon opposite sides platen frame, and the paper is fed and guided of the brackets .12, and extend inwardly from around theplnten byineans of spring-pressed the ends of the platen frame. Their tips otions, which are thrown into and out of normally engage the cars 10, ll. of the roller engagement with the platen bv means of e supporting arms, and press them toward 7o key pivoted upon the platen t rn-me. each other, thereby forcing the rollers 21,

One object of the invention is to provide 532 aga nst the p 'een- 1 improved means "for pressing the rollers i provide .sFringlensioning screws 23,

ngainst the platen. I provide a pair of edouch of which ms :1 head. to engage one of acent roller-snpporting arm s'pivotecl upon the epr1ngrs, es l9, and a shank threaded 75 a rock shaft secured in the platen frame, and -tl rflug a ho e 24 11 t e opposite sin-1115;2 springs each secured at; one end, the free By turning sand screw so as to draw said .ends thereof ngrmally bearing against the springs tOWtlFtl. 8210i! Ollhl, the tension arms and thereby forcing the rollers against thereo is firfln edthe-platen. I'elso provide improved means 1 When the key .18 is glcpressml, Fig. 3, on so fmwadwshng the tension of the springs. npwni'cl movement 15 giyen to the crank 15 A further ohj'e ,t is to provide improved by means of the link 16, rocking the shalt menus forforcing'and autoinnticnllylocking l3 and rotating the earns 14, the latter the springs away from the arms. To this forcing h p g .7 1 QOAWW from the end i provide it com secured upon it rock .nrnis it). 11, zillowin the rollers to ilrop g5 shaft o elable b a k i ted upon the .from theplnten. T e cnrnn are provided platen mine, the cam provided with rests with rests or fi nttenecl portions 35. 26 to or flattened portions to engage the springs engage the springs and lovl; them away nncllock them away from the nuns. from the iii-ins when the key is nt the limit in the accompanying drawings, Figure 1' of its downward strolge. A no is Ft-flOnl] elevation of a. typewriter platen. ll'aving thus described my nnvention I paperfeeding rollers and part of the platen olniin: I I frame of an Underwood t-ypewritin nm- 1. In :1 typewriting machine, the combine chine, showing my improvements. fig. 2 tion with a platen and a platen frame, of

is a fragmentary perspective bottom view pivoted nrmscnrrying roilers to r nn upon n; showing the springs locked away from the the platen, said arms hav ng depending eni's roller-carrying arms. Fig. 3 is an elevation normally engaged by springs to press them looking at the right hand end of Fig. 1, toward each other anti there n cheese the but showing the l'rey depressed and the rollers to pressnginnst the platen, end moons rollers out of engagement;-with the platen. for forcing and locking the eprin n own mo Fig. l is a view similar to Fig. it but, with from the ears to allow the arms with the the parts in nornnil positions. Fig. 5 is e rollers to drop n vey from the platen I detail View showing the springs pressing .l lnn typewritlnginachn ie,thepomhlneugnimt the arms. tion with n platen and e. platen item-e, oi

A platen l is revolnhl mounted by an pivoted arms cnrrymgroliers to ru n upon me axle 2 in the ends 3,4, of a platen frame. the platen, said arms hav ng depending enrs .livoted upon a reel 5 are pairs of adjacent. normally engaged by SPIIHO'H to press them arms (3, 7, in which are journnlerjl ,rolleri townrcl each othernnti thereliy cause the roll" carrying shafts 8, 9, one arm in each pair I ersto press aga nst the gfih iten, means or extending forwardly and upvvnrdlynntl hm, forcing and locking the springs nwny from 110 .run upon the platen,

tion with a platen rame and a platen,

- 3. Ina typewriting machine, the combination with a platen frame and a revoluble platen, of'pivoted arms carrying rollers to springs enga 'ng ears depending" from said arms, and a ey-operated cam engaging the springs and efiective to force and loclk .them away from the ears. 4. In a typewriting nachine, the combination with a platen a d a platen frame,'of

pivoted arms supportingA rollers-to rgn upon avlng mem ers en the platen, said arms aged by springs to press the rollers against tie platen, and cams operable to release the pressure of the springs on the arms and hav ing rests to e igage t in released positions.

5. In a typewritin machine, the combina o pivoted arms supporting rollers to run 11 on the laten, one of said arms extending ifon war ly' and upwardly and having a depending ear, and the other arm extending rearwardly and also having a depending ear, a pain-of sprin s secured at one end andat their free en them toward each other, and a cam operated b a key to force and lock the springs away rom the ears.

G. In a typewriting'machine, the combination with a platen frame, a platen and rollers running thereon, of adjacent rollersupporting arms pivoted upon a rod secured in the platen frame, the arms having ears engaged by springs to normally press the rollers against the platen, and means for forcing the springs away from the ears and allow the rollers to, drop away from the platen.

7 In a typewriting machine, the'combinae springs to lock them and a shan s engaging the ears to press tion with a platen frame, a platen and rollers running thereon, of adjacent. roller-supporting arms pivoted upon a rod secured in the platen frame, the arms having depending ears enga ed by springs and thereby pressing the ro for forcing. and automatically locking the lers against the platen, and means springs away from the ears.

n a typewriting. machine, the combination with a platen frame, a platen and rollers running thereon, of roller-carrying arms having depending ears and pivoted upon a rod secured in the platen frame, a rock-shaft having a cam thereon and journaled in brackets secured to therod, a pair of springs secured each at one end to the brackets and at their free ends normally engagi n with said ears, to press them toward eac other and thereby cause the rollers to press against the platen, said cams effective to both force 'and lock the 5 rings away froin the ears and allow the rofiers to drop away from the platen, and a screw for increasin or decreasing the tension of thecsprings, sai

screw havin a head to engage one spring spring.

9. n a typewritm machine, the combination with a revolub e platen and a platen threaded through the other frame, of rolls, arms carrying said rolls, a

rock-shaft, a key connected to said rockshaft, cams upon said rock-shaft, opposite springs pressing said arms and engageable at their tips by said cams, and screws to regulate the tension of the springs, said screws each having a head to engage one spring and a shank o osite sprin pp i g FRANK W. SICKLES.

Witnesses:

W.,M. DYORKMAN, MORTON C. TALCOTT.

threaded through the 

